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they're extremely hard which also makes them brittle. The last several times I attempted to use one they cracked or shattered, leaving behind extremely hard pieces of metal that couldn't be drilled out.

If theres anything left sticking out you could try vise grips, or welding a nut to it. Heat and penetrating oil often helps. If theres nothing left, try reverse drills, make sure theyre centered and straight.

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โˆ™ 2008-09-26 22:39:42
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Q: How do you fix a broken exhaust manifold stud in an aluminum head?
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